#3B2770
Closest named color: Royal Purple (#4B006E). oklch(34.1% 0.12 291.3), rgb(59, 39, 112).
Aa
White text reads best on this color (12.27:1).
About this color
#3B2770 is a dark, moderately saturated purple. In OKLCH its lightness is 34%, its chroma 0.120 and its hue 291°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Royal Purple (#4B006E), ΔE 0.065 away. White text reads best on it, at 12.27:1.
| Hue family | Purples |
| Lightness | dark (34%) |
| Chroma | moderately saturated (0.120) |
| Temperature | in between |
| Nearest name | Royal Purple (#4B006E) |
| Black text | 1.71:1 |
| White text | 12.27:1 |
Values
| HEX | #3B2770 |
| RGB | rgb(59, 39, 112) |
| HSL | hsl(256, 48%, 30%) |
| OKLCH | oklch(34.1% 0.12 291.3) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #3B2770 | 12.27:1 | AAA | Lc -101.1 | Preferred for body text |
| Black text on #3B2770 | 1.71:1 | Fails | Lc 0.0 | Not readable |
| #3B2770 text on white | 12.27:1 | AAA | Lc 97.6 | Preferred for body text |
| #3B2770 text on black | 1.71:1 | Fails | Lc 0.0 | Not readable |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 900.
-
Step 50
50
#F5F4FD
oklch(97% 0.012 291.3)
-
Step 100
100
#E9E7FB
oklch(93.5% 0.027 290.5)
-
Step 200
200
#D9D4F8
oklch(88.5% 0.049 291.7)
-
Step 300
300
#C1B7F7
oklch(81% 0.09 291.4)
-
Step 400
400
#A28EF3
oklch(70.6% 0.145 291.3)
-
Step 500
500
#8D6FEE
oklch(63.1% 0.184 291.1)
-
Step 600
600
#7952DC
oklch(55.5% 0.2 291.5)
-
Step 700
700
#6642BF
oklch(49.1% 0.186 291.3)
-
Step 800
800
#53379B
oklch(42.7% 0.155 291.3)
-
Step 900
900 (this color)
#3B2770
oklch(34.1% 0.12 291.3)
-
Step 950
950
#281E48
oklch(27.1% 0.075 291.5)
#3B2770 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #003672 | 0.072 |
| Deuteranopia (no green cones) | #00336E | 0.071 |
| Tritanopia (no blue cones) | #2B3847 | 0.098 |
| Achromatopsia (no color) | #353535 | 0.121 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3B2770
#3B2770
oklch(34.1% 0.12 291.3)
- #3A3B00
#3A3B00
oklch(34% 0.075 110.8)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #3B2770, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Purple #4B006E ΔE 0.065
- Indigo #4B0082 ΔE 0.065
- Midnight Blue #191970 ΔE 0.072
- Dark Slate Blue #483D8B ΔE 0.075
- Prussian Blue #1D3557 ΔE 0.076
- Marine Blue #01386A ΔE 0.076
- Marine #042E60 ΔE 0.077
- Twilight Blue #0A437A ΔE 0.086
Use #3B2770 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.